JPS6049942A - Manufacture of interior finish material for automobile - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to an automobile interior in which a fabric skin material having at least a fabric surface is adhered without wrinkles to the surface of a base material such as an automobile door trim or center pillar. The present invention relates to a manufacturing method for automobile interior materials that can be easily mass-produced.

(Prior art) Conventional automotive interior materials use a thermoplastic synthetic resin skin material that is coated with adhesive on the surface of the base material and then heated and softened using a heater, using suction holes made through the base material. Normally, the material is manufactured by attaching a suction bag to the surface of the base material, but at least the skin material whose surface is cloth does not soften even when heated, and cannot be made to adhere tightly to the surface of the base material without wrinkles. Therefore, this method cannot be used, and the surface material must be attached by hand while removing wrinkles from the surface of the base material coated with adhesive, which requires skill and ensures uniform quality. There was an ode to not being able to mass produce things.

(Object of the Invention) The present invention is a method for manufacturing an automobile interior material that eliminates the above-mentioned intercondylar points and easily mass-produces an automobile interior material that adheres the fabric skin material to the surface of the base material without wrinkles. It was completed with the aim of

(Structure of the Invention) The present invention involves setting a skin material having at least a cloth surface on the surface of a preset mold having a mold surface corresponding to the surface shape of a molding base material, with the cloth surface facing the mold surface, and then The skin is suctioned and brought into close contact with the mold surface using suction pressure applied through suction holes provided in the mold, and then an adhesive is applied to the surface, and the molding base material is suctioned and brought into close contact with the mold surface of the preset mold. It is characterized by adhering the molded base material and the skin material by pressing the back surface of the material.

(Example) Next, the present invention will be described in detail using an example in which a door trim for an automobile having the shape shown in FIG. 3 is manufactured.
Q) is a molded road side with four parts (2) formed on its surface, which is made of synthetic resin, hard fiberboard, hardboard, etc., and whose surface has at least a surface such as a cloth skin material or a bonded skin material. A preset mold (4) having a mold surface corresponding to the surface shape of the molding base material (1) is first manufactured using an iron plate. As shown in the figure, the preset mold (4) is provided with a large number of suction holes (5), and the inner cavity (6) is connected to a vacuum source of a large device such as the suction side of a proar with a suction tube (7). . Then, as shown in FIG. 1, on the surface of this preset mold (4), a skin material (3) having at least a cloth surface is set with the cloth surface facing the preset mold (4), and then the suction It is brought into close contact with the surface of the grisset mold (4) by suction pressure applied through the hole (5).

At this time, the skin material (3) is only lightly fixed on one surface of the preset mold (4) by suction, so misalignment and wrinkles can be corrected very easily by hand. . Next, as shown in Figure 2, 2
Molded base material spray-coated with liquid-heating adhesive (
1) is pressed against the back surface of the skin material (3) which has been suctioned and brought into close contact with the surface of the preset mold (4) and shaped into a shape corresponding to the surface shape of the molded base material (1). ) can be adhered to the surface of the molded base material (1) without creating wrinkles, so if the outer periphery is wrapped around the back surface of the molded base material (1) and secured with a tacker needle, it will form the shape shown in Figure 3. You can get a door trim for your car that will look great on the market. As the skin material (3), any material can be used, such as a single fabric skin material, a bonded skin material backed with urethane foam, or a raised skin material with a raised surface. The base material (1) can be hardboard, synthetic resin molded products, hard fiberboard, or molded materials made from non-porous materials such as iron plates, and any type of adhesive can be used. Moreover, in addition to being applied only to the surface of the molded substrate (1) as in the above embodiment, it may also be applied to the back surface of the skin material (3).

(Effects of the Invention) As is clear from the above description, the present invention allows a skin material having at least a cloth surface to be easily attached to the surface of a molded base material having a complex surface shape without causing wrinkles. If the surface of the molded base material has uneven steps and the slope of the uneven part is within the range of about 30 to 30 degrees, the skin material can be attached without difficulty. Further, the present invention is not limited by the material of the molding base material, and the skin material can be made of at least a cloth surface, eliminating the need to use expensive materials with good moldability. Moreover, even unskilled workers can mass-produce products of uniform quality, making it a huge contribution to the industry as it solves the problems associated with the production of conventional automotive interior materials.

[Brief explanation of the drawing]

1 and 2 are process explanatory diagrams of an embodiment of the present invention, and FIG. 3 is a partially cutaway perspective view of an automobile door trim manufactured by the method of the present invention. (1): Molded base material, (3) Two-skin material, (4) Nib reset type, (5): Suction hole. Figure 1 Figure 3 Figure 2 Figure 3

Claims (1)

[Claims] A skin material having at least a cloth surface on the surface of a preset mold having a mold surface corresponding to the surface shape of the molding base material is set with the cloth surface facing the mold surface, and then placed on the preset mold. A suction pressure applied through the hole is applied to the mold surface, and then the molding base material whose surface is coated with adhesive is pressed against the back surface of the skin material that is suction-adhered to the mold surface of the preset mold to form the mold. A method for manufacturing an automobile interior material, which comprises bonding a base material and a skin material.